Pumpline - Graco Aerobotix RC50 Instructions Manual

Table of Contents

Operation

Pumpline

. 18

Key:

NA Pump Turn-Dial

NB Metering Pump

NC Metering Pump Air Purge Valve

ND Metering Pump Motor

Both pumps are protected on the inlet side by a basket

filter and a low-pressure switch. An inlet pressure gauge

also provides a visual indication of the pump inlet pres-

sure. Day tank pressure below the setting of the Meter-

ing Pump Low Inlet Pressure switch will cause a

warning alert and the affected metering pump motor will

shutdown. See the table at the beginning of the Set-

tings section on page 45 for switch setting.

The pumps are protected on the outlet side by a

mechanical relief valve and a pressure switch, see the

table at the beginning of the Settings section on page

45 for settings. A pressure transducer provides a digital

signal to the PLC to indicate the outlet pressure. Should

this pressure be exceeded, the affected metering pump

motor will automatically stop and will be accompanied

by alarms.

NE Pressure Switches

NF Relief Valve

NG Pressure Transducer

NH Inlet Pressure Gauge

ti14338a1

313813A

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